Category Health/Medical

Craving Snacks After a Meal? It might be Food-Seeking Neurons, Not an Overactive Appetite

Four hands reaching for designer doughnuts
Tu Trinh/Unsplash
The discovery of a circuit in the brain of mice that makes them seek fatty food, even when they are not hungry, could have implications for future understanding of and treatment for human eating disorders

A new study has shown that food-seeking cells exist in a part of a mouse’s brain usually associated with panic — but not with feeding. Activating a selective cluster of these cells kicked mice into ‘hot pursuit’ of live and non-prey food, and showed a craving for fatty foods intense enough that the mice endured foot shocks to get them, something full mice normally would not do. If true in humans, who also carry these cells, the findings could help address the circuit that can circumvent the normal hunger pressures of ‘how, what and when to eat.’

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Severe Lung Infection during COVID-19 can cause Damage to the Heart

Vector illustration of a heart and coronavirus

SARS-CoV-2, the virus that causes COVID-19, can damage the heart even without directly infecting the heart tissue, a study has found. The research, published in the journal Circulation, specifically looked at damage to the hearts of people with SARS-CoV-2-associated acute respiratory distress syndrome (ARDS), a serious lung condition that can be fatal. But researchers said the findings could have relevance to organs beyond the heart and also to viruses other than SARS-CoV-2.

Scientists have long known that COVID-19 increases the risk of heart attack, stroke, and Long COVID, and prior imaging research has shown that over 50% of people who get COVID-19 experience some inflammation or damage to the heart...

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Swallowable Sensors could Pinpoint Gut Movement Problems for Patients

Swallowable sensors could pinpoint gut movement problems for patients
A close-up picture of the capsule. Credit: Gerard Cummins, University of Birmingham.

Scientists have developed an ingestible capsule dotted with sensors that can detect pressure in a patient’s guts and detect points of failure.

The ingestible system will give colorectal medical teams an unprecedented understanding of the movement of a patient’s digestive tract, or lack thereof. Instead of simply taking images of inside the guts, the system will sense whether it’s contracting, how much pressure is exerted and exactly where it might be inactive.

The system has been tested in a synthetic gut and animals. A patent for the technology is pending.

The team from Heriot-Watt University and the University of Birmingham, with colleagues from the University of Edinburgh, have reported the...

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Team develops Fluid Biomarker for Early Detection of Amyotrophic Lateral Sclerosis, ALS and Frontotemporal Dementia

Johns Hopkins Medicine-led team develops fluid biomarker for early detection of ALS and FTD
A Johns Hopkins Medicine-led team has developed a fluid biomarker that may one day detect two degenerative diseases, ALS and FTD, before symptoms appear. The biomarker locates a protein associated with the loss of function for the TDP-43 protein (seen as a molecular model in this image), an abnormality linked to people who develop ALS or FTD. Credit: Public domain image via Protopedia.org

Two progressively degenerative diseases, amyotrophic lateral sclerosis (ALS, commonly known as Lou Gehrig’s disease) and frontotemporal dementia (FTD, recently in the news with the diagnoses of actor Bruce Willis and talk show host Wendy Williams), are linked by more than the fact that they both damage nerve cells critical to normal functioning—the former affecting nerves in the brain and spinal cord ...

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